Traction wheel



April 1o, 192s. l 11,666,037

W.- E, WINE I ET AL TRACTION WHEEL Filed April s, 1925 v easily lost or broken, and which means shall` Patented Api. rio, 1928.

1 wiptmn E. WINE AND Josnrgafw. ritoivr'iinsonnnnmi, entrenan-0,.' omo, assumons TQr FRTQQWP QQMPANY, .GF 'iD-1.02m@ cmo,l A conronaroitor i 'rn'AorIoN WHEEI.. jf i appiicaionniea yApril s, 19.252.` serial no. v21329,*5 i" This inventionfrelatesto a novel andimproved traction lwheel particularly of vthe type injwhich a pluralitlyoic shoes are loosely 4mounted on the 'periphery of a rim, which rim coaets withthe shoes during-the rotation voli' the wheel, the vshoes'forming a track upon which thewhee'l lis* supported. 'The shoes remployedwith4 this type of wheel are usu'- ally provided withiground vengagir1g bars to n l0, provide proper traction and when thewhcel is to be runover a Asmooth surface or over a surface where the ground engaging barsl areV not necessary, fitfhas "beencnstomary to remove'the entirefsh'oe and also, any teeth, or ythe like, which mayhave been' provided on I the 'rim to co-operate with the shoes.

lt is onerot1 the princip'alobjects of our inventin to provide a-shoelwhich mayl be provided with ground engaging bars, togetherwith means for readily and quickly replacing such bars with pads so that'the Wheel may then be ein iter ai 'Sflo'eth" reve- 4 v ment *or any other suraceiwhereon it 1s not desirable to use the bars.

. It is a further object of our inventioni to provide a 'shoe of the above character which may' be readily applied to wheels ynormally y cn . employing a usualftype of shoe and .without change other than that made` in the shoe itself. y A still further object of vour invention 1s to provide a shoe provided with holders for the padswhich may be readily attached to and detached from the shoe, and which will eiloiently prevent lateral movement of the pad and-takeall lateral strains. Anotherobject of our 'invention isto p ro- Vvide means for securing pads to 'a traction a shoe in-such a manner as to avoid the necessity of complicated devices which may he `r a be rugged in character and shall efeetually -hold the pads against displacement.vr

Referring to the drawings in which we .have shown a selected embodimentyof our 1n` vention: f v

Fig. 1 is a jview partly in section and partly in elevationof a portion-of a wheel v having our invention embodied therein.

.Fig. 2 isan outer plan view of one yof the shoes shown in Fig. 1.

Fig'. 4 'is' a` .section'onnthilne of eFig. 5"is a sectioncorresponding to Figgl, but showing the pads 'replaced byground engaging bars..v

' In the vdrawings the numerall designates the rim of a wheel',which"rmay be of kany suitable'v construction, such as we-haveshown 'in ourco-pending- "application Serial No.

' shoe forming the subject'niatter of our inL -vention' has suit-abletrack'sections upon which the rim` of fthe `wheel vmay -roll andy transverse tooth members Gffofr engagement d withfthe teeth 2 nponthe rim.4 l.Thejshoeis 'y preferably 'in one` piece and "in, the form )of two" pla-tes; having''up's'taiiding A,ribs f whichv forni the tracksectionsg 'Thetwo plates are joined by the transversebar 4 and the tooth members 6. j

As best sho'wnin Figs. l1 and 3, each plate 7 is provided at its endswith flangesQ and is provided at its centralv `portion with shoulders 10 which'mayfbe conveniently formed. i Aby depressing the plate at thisp'oint. The

flanges 9 andthe shoulders 10 iorrnl convenient means for placing the holders 11 for the pads r12. `Each holderV is provided with a.V l

socket 13 adapted to receive the ange 9 and `when the fla-nge isplace'din lthe socket, the

shoulder 14 'on the opposite end of the holder comes in contact .with the shoulder 10 "on the shoe. `A bolt, or the like`1'5,y passes through the plate 7 and the nut 16l on the' bolt-"serves, to.. secure the holder against removal, the

lends of theholder being suitably recessed at 17 to receive the'bolt. i v.

It will' be seen that inthis embodiment `wefprovide four pads, two onfeachv of the ,two plates 7, and by thev constructionijust describedwe make-,vit possible to'secure two holders against removal 'romf the shoey by means of onebolt. y.llach'holderis provided with internal vshoulders 18 ltoreceive anges*` 19v upon the pads`12. Eachpad is inserted from'the inner side of the'holder and when the holder in'turn is secured-to'. the shoe, it

' will' be seen that the inner Sidel `of `iihepad.

' rests against the bottom of the plate 7, so

that it is in position to take its full share of the load transmitted through the shoe. When the pads are placed in the holdersy and the holders secured in position, as best shown in Figs. l and 3, there is no llateral strain placedl upon ythe bolt7 all such strain being taken by the co-operating parts eX- emplified by the flanges 9 and the sockets i3 and the shoulders l() and 14. These co-operating parts effectually preventl lateral movement in any direction, it being noted from Figs. and 2v that the sockets 13 are provided With sides` 2O to prevent movement transversely of theplate as vvell as longitudinally thereof. n

In Fig. 5 We have shown how the shoe may be employed With ground engaging bars instead of pads. Theplates 7 are provided with apertures 2l of a size to receive bolts 22 by means of which transverse ground 'engaging bai-s 23 may be secured to the shoe. When these bars are to ybe used in place of the pads, all that is necessary is to remove the bolts lvhen the holders l1 may be taken off and the bars 23 bolted in place. f y .F rom the above it will be apparent that We have provided anovel and improved shoe which may be employed With a Wheel of the type illustrated, in placeof the shoes normally used therewith, thereby avoiding any necessitylfor change in the structure of y theWheel rim lor teeth. It will furthermore Leases? be apparent that oui' shoe furnishes a means for ready` 'change from ground engaging bars to soft pads or vice versa, depending upon the type of service which is demanded 'and Without sacrificing the advantages ofl theinvention and We reserve the right to make all such changes as fairly fall Within the scope of the following claims.

We claim: i y

l. A traction shoe comprising a plate having flanges at the ends thereof and shoulders adjacent the center thereof, a plurality of pad holders having sockets to receive said flanges and shoulders co-operating With the shoulders on said plate to prevent lateral movement, andmeans securing the holders to said plate.

2. A traction shoe comprising a plate having flanges at the ends thereof and vshoulders adjacent the center thereof, pad holders having sockets to receive saidflangesand having `shoulders to co-operate Withy the shoulders on said plate, theends of 'said holders lying adjacent each other near the center` Vof said plate, and a bolt passing through said plate and securing saidends of said holders thereto; f

WiLLiAM n. WINE. Y Josnrii W. Piani/.innscnnvirnii.I 

